<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="./style.css">
</head>

<body>
    <div class="wrap">
        <button id="btn">Game Start</button>
        <div class="main">
            <!-- 一行 -->
            <!-- <div class="row">
                <div></div>
                <div></div>
                <div></div>
                <div></div>
            </div> -->
        </div>
    </div>

    <script src="./index.js"></script>
</body>

</html>